Finding the Fourth Proportional to 686,914,147.35, 1,030,486,146.99 and 539,355,754.70
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Solution
The fourth proportional to 686,914,147.35, 1,030,486,146.99 and 539,355,754.70 is: 809,123,870.37
Step by Step Solution
- Step 1: Write the proportion equation
686,914,147.35 : 1,030,486,146.99 = 539,355,754.70 : x - Step 2: Convert to fraction form
686,914,147.35/1,030,486,146.99 = 539,355,754.70/x - Step 3: Cross multiply
686,914,147.35x = 1,030,486,146.99 × 539,355,754.70 - Step 4: Simplify right side
686,914,147.35x = 555,798,633,517,686,656 - Step 5: Solve for x
x = 555,798,633,517,686,656/686,914,147.35 - Step 6: Final answer
x = 809,123,870.37
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.